Home / 2,918,012.72-4,377,015-1,621,988.96

Finding the Fourth Proportional to 2,918,012.72, 4,377,015 and 1,621,988.96

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Solution

The fourth proportional to 2,918,012.72, 4,377,015 and 1,621,988.96 is: 2,432,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,012.72 : 4,377,015 = 1,621,988.96 : x
  2. Step 2: Convert to fraction form
    2,918,012.72/4,377,015 = 1,621,988.96/x
  3. Step 3: Cross multiply
    2,918,012.72x = 4,377,015 × 1,621,988.96
  4. Step 4: Simplify right side
    2,918,012.72x = 7,099,470,007,754.40
  5. Step 5: Solve for x
    x = 7,099,470,007,754.40/2,918,012.72
  6. Step 6: Final answer
    x = 2,432,981.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.